package code.c06;

/**
 * @author thinkpad - 83start
 * @version v1.0
 * @create 2022/10/13 10:05
 * @package code.c06
 * @description 文件说明
 */

public interface USB {
    public void work();

    public void insert();
}

class Mp3 implements USB{

    @Override
    public void work() {

    }

    @Override
    public void insert() {

    }
}
